1: (0 1 15)

(0)(1 20 15 21 8 6 4)(2 18 12 5 3)(7 13 10)(9 19 17)(11 16 14)

2: (8 15 21)

(0)(1 20 15 6 4)(2 18 12 5 3)(7 13 10)(8)(9 19 17)(11 16 14)(21)

3: (5 18 12)

(0)(1 20 15 6 4)(2 18 3)(5)(7 13 10)(8)(9 19 17)(11 16 14)(12)(21)

4: (7 13 10)

(0)(1 20 15 6 4)(2 18 3)(5)(7)(8)(9 19 17)(10)(11 16 14)(12)(13)(21)